Spring bed-bottom



No. 616,874. Patented Jan. 3, I899. E. J. ANTONI.

" SPRING BED BOTTOM.

(Application filed Jan. 29, 1898.)

y (Zn [011 I NITED STATES PATENT FFTCE.

ERNST J. ANTONI, OF KANSAS CITY, MISSOURI.

SPRING BED-BOTTOM.

SPECIFICATION formingpart of Letters Patent No. 616,874, dated January 3, 1899.

Application filed January 29, 1898- Serial No. 668,503. (No model.)

To all whom it may concern.-

Be it known that I, ERNST J. ANTONI, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Spring Bed-Bottoms; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others to make and use the same, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates more specifically to the manner of connecting one spring in a helicalspring bed-bottom with an adjoining spring to insure conjoint action of the springs; and it has for its object a link which will sustain a pressure corresponding to that of aseparate spring and maintain a uniform depression of the series of springs with which they are united in the plane of the bed-bottom.

My invention consists in the novel construction and arrangement of parts hereinafter more fully described, and specifically pointed out in the claims.

In the drawings, Figure 1 is a plan View of a helical-spring bed-bottom, showing my improved link applied to the separate springs. Fig. 2 is a perspective View in detail of adjoining springs detached from the bed-bottom, one of which is broken away, showing the improved hinged link connected with the upper and lower terminal end coils of the springs. Fig. 3 is a detail view of one of the springs of the bed-bottom, showing a part of the link continuous from the terminal end coil of the spring. Fig. i is a detail view in perspective of a portion of the terminal coil of the spring and of the wire forming part of the link as shown connected with each other.

Similar letters of reference indicate corresponding parts in all the figures. 7

Referring to the drawings, A, in Fig. 1, represents the bed-bottom combining my invention, composed of a series of helical-shaped springs A, arranged in line with each otherin the transverse direction of the bed-bottom and in a series of lines in the longitudinal direction of the bed-bottom and at a short distance apart one from another.

Extending along each side of thebed-bottom is a rod 13, and at each end of the said bottom is a rod 13, which rods are connected at the ends with the respective ends of the rods B, and thus form a rectangular outer frame in the same plane with the upper end coil of each spring A in the series of springs. Beneath the frame B B is a frame 13 which is the same as the frame B B and shown in section in Fig. 2.

The separate helical springs in the series of springs A are connected with each other as follows: The terminal end portion of the wire forming the upper coil of the spring A is first twisted to form the horizontallyextended loop a. Thence in passing in a circuitous direction about one-fourth the described length of the said coil the downwardly-extended loop a is formed. (See Fig. 3.) Thence at a point one-half the described length of the coil from loop a is formed the downwardly-extended loop a, and at a point three-fourths the described distance from loop a, is another downwardly-extended loop a, and the end portion of said wire is extended downwardly through the loop a and thence in a horizontal direction to a point a short distance outwardly from said loop, thence bent nearly at right angles and a series of spirals a formed in said bent portion, so as to leave the terminal portion of the coil a in about the same plane as the portion of the wire extending from the loop a, said coil constituting a part of the helical spring and also of the spring-hinge which links the separate helical springs together and hereinafter described.

In the lower end coil of the spring A is a horizontal loop o which is upon an opposite side of the spring A to that having the loop a, and in said coil are upwardly-extended loops a which are the same in number and arranged from the loop a the same distance apart as the loop a in the upper end coil. The terminal end of the wire in the lower end coil is extended upwardly through the loop a and thence in a horizontal direction a short distance and bent at right angles and a coil a formed in said portion, as described of the coil a the terminal end of the coil being in the same plane as the portion of the wire extending from loop a Each one of the helical springs A in the bed-bottom is connected in like manner and is arranged in the bedbottom in like position.

A flat plate 0 is arranged between two adjoining pairs of helical springs and 1s preferably square in form. At each corner of plate 0 and upon the inner side is a lug c.

Extending across the plate 0 and through the lugs c c, opposite in position to each other, are separate pintles or bolts 0 c, the plate being seen reversed in Fig. 2. These plates 0 are arranged in the plane of the end coils upon both sides of the bed-bottom. The coil a contiguous with one of the helical springs A at one corner of the bed-bottom in the position as seen in Fig. 1, which relatively is the top of the bed-botton1, is extended beneath the plate 0, and through the coil 0, is passed the bolt 0. The end coil of adjoining spring, however, is connected with the plate 0 by a separate piece of wire D, one end portion of which wire is provided with a coil d, which is precisely the same as the coil a and through which coil (Z the bolt 0 extends. The other end of the wire D extends over the top of the end coil and is then bent rearwardly, as at (1, through the loop a and then bent forward, as at (P, in a single curved line, as seen in Fig. 4, thus obtaining a strong yielding bearing upon the loop. Separate wires extend from each vertical loop on the end coils of the helical spring A, which are precisely the same as the wire D, and are each provided with a coil and secured to the plate 0 in such a manner that the terminal ends of the wire from each coil will extend on the inner side of the bolt and adjacent to the inner side of the plate 0, forming a double spring-hinge, and the full resisting force of the spring in each coil obtained when the weight is applied to plate 0, and the depression of the plates and springs A are consequently uniform.

The portions of the helical springs A which are adjacent to the rods B B are connected with the said rods with like coiled portions of the extensions of the spring, as at a, and the wires are also made to extend continuously from the rods to the next helical spring in the longitudinal direction of the bed'bottom and the connection made with the spring, as in Fig. 4.

In the employment of my improved link the energy brought upon any part of the bedbottom is borne equally by the plate 0 and its hinged connection, which deflects in a corresponding degree with the depression of the helical springs A in the bedbottom, the rigidity of the ends of the wires being obtained by the bearing afforded by the loops, which extend below the end coils, and in the conjoint movement of the hinge connection of the link the weight is distributed over a large surface.

As shown in Fig. 2, the power of the springs is increased so that the elasticity of the bedbottom is preserved equally as well between the helical springs as upon them and increasing the wearing efficacy of the springs. The link is applicable to all forms of helical spring bed-bottoms and especially in those bed-bottoms having slats which support the lower end coils.

Having fully described my invention, what I now claim as new, and desire to secure by Letters Patent, is-

1. In a spring bed-bottom having a series of helical springs, an intermediate support for the end coils of adjacent springs in the plane of the bed-bottom comprising a plate and extensions from said end coils extending in opposite directions and bent into spirals and connected with the said plate.

2. In a spring bed-bottom the combination with the helical springs composing said bedbottom of a link uniting separate springs in contiguity comprising a plate having lugs upon the inner side portion and at each end and separate pintles in said lugs and separate coiled-wire springs upon said pintles having one end of one end coil bearing upon said plate and the other end of the wire composing said coil extending to and through asuitable loop in the end coils of each helical spring.

3. In a spring bed-bottom the combination with the helical springs composing said bedbottom having downwardly-extended eyes,of a link uniting separate springs in contiguity comprising a plate having separate lugs upon the inner side portion, separate pintles in said lugs and separate coiled-wire springs upon each pintle, one end of which coiled wire bears upon said plate and the other end extended within said eye on the end coil of the helical spring and bent in a single curved line to form a hearing as specified.

ERNST J. ANTONI.

WVitnesses:

WM. P. BORLAND, A. L. GREER. 

